Early in his career he contributed on special teams, something that he would maintain during his time with the Cowboys, even winning some weekly awards for his performance.

By the start of his second year he replaced hall of famer Mel Renfro in the starting lineup at cornerback. He missed the last four games of that season (1977), because of a fractured left wrist he suffered in a 34-16 win over the Washington Redskins.[2]

Kyle played a total of 3 seasons in Denver, starting at right cornerback, while leading the team in turnovers in both 1981 and 1982, with a total of 5 interceptions and 7 fumble recoveries. In 1981 he registered 68 tackles. He retired on April 16, 1983, after being the Broncos player representative during that season's strike.[6]